Examine source code of Contraseñas

{
  "manifest_version": 2,
  "name": "Password",
  "version": "1.0",
  "description": "Generador de contraseñas fuertes y únicas con un clic. // One-click strong and unique password generator.",
  "browser_action": {
    "default_popup": "index.html"
  },
  "icons": {
    "1000": "img/ICON.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.mozilla.org/*"
      ],
      "js": [
        "js/scripts.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{f3bbb1c5-39c8-4d25-bbdf-ca10c4ae2b44}"
    }
  }
}